PEEK PEEK_MINIMAL
  NOT_REFERRED 1635         2112
  REFERRED       37           37

    Pearson's Chi-squared test with Yates' continuity correction

data:  referral_location_table
X-squared = 0.94998, df = 1, p-value = 0.3297

                    
                     PEEK PEEK_MINIMAL
  BILATERAL_FAIL_0.3  231          161
  PASS               1439         1984

    Pearson's Chi-squared test with Yates' continuity correction

data:  referral_location_table
X-squared = 40.08, df = 1, p-value = 2.437e-10